DNA Air Filters - Air Filter for Benelli TRK 502 17-21 / TRK 502 X 17-21 Options:Air Filter Includes 4x stainless steel button

Includes 4x stainless steel button head bolts

Internal 3 way intercom support

Capacity: 371 cu in

- 21mm sweep

DNA Air Filters - Air Filter for Benelli TRK 502 17-21 / TRK 502 X 17-21 Options:Air Filter Includes 4x stainless steel buttonThis filter features DNA's advanced FCd (Full Contour design). Installation of the filter is very easy, simply follow the information that can be found in the Benelli workshop manual. The filtering efficiency is extremely high at 98 99% filtering efficiency, with 4 layers of DNA Cotton. The flow of this DNA Fcd filter is high, 76. 64% more than the Benelli stock foam filter! DNA Fcd air filter flow: 172. 20 CFM (Cubic feet per minute) @1,5"H2O